Wire-knot-forming tool



March 17, 1925.

P. WRIGHT WIRE KNOT FORMING TOOL Filed May 2'7, 1924 Patented Mar. 17, 1925.

UNITED STATES PARVIN WRIGHT, OF CHICAGO, ILLINOIS.

wmE-imor-Fomame TOOL.

Application filed May 27, 1924. Serial No. 716,178.

[ all whom it may concern:

Be it known that I, PARVIN WRIGHT, a citizen of the United States, residing at Chicago, in thecounty of Cook and State of lllinois, have invented certain new and useful Improvements in a. lVire-Knot-Form ng Tool; and I do hereby declare the following to be a full, clear, and exact descrlption of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a knot forming tool whereby a knot may be formed on the end of a wire package binder, and has for 16 its object to provide a device of this character which will be simple in construction, comparatively inexpensive to manufacture, and more efficient in use than those heretofore proposed.

lVith these and other objects in view the invention consists in the novel details of construction and combinations of parts as will be more fully hereafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings, forming a part of this specification, in which like numerals designate'like parts in all the views;

Figure 1 is a side elevational view of a device made in accordance with this inven- 11011 F i g. 2 is a sectional view taken on the line 22 of Fig. 1 and looking in the direction of the arrows;

Fig. 3 is a top plan view, partly in section, of the device shown in Fig. 1;

Fig. 4 1s a sectional View taken on the line 1'1 of Fig. 1 and looking in the direction of the arrow;

Fig. 5 is a perspective view of the device when applied to a wire package binder and about to be operated;

Fig. 6 is a perspective view of the device, with parts broken away, after completing the first step of the knotting operation;

Fig. 7 is a view similar to Fig. 6 and illustrating the device after completing the second step of the knotting operation;

Fig. 8 is a view similar to Figs. 6 and 7 and illustrates the device after completing a further step in the knotting operation;

Fig. 9 is a perspective view of the device after completing a still further step in the forming of a knot;

Fig. 10 is an elevational view, partly in shank section showing the device being removed from t e completely formed knot applied to the wire binder of a package; and

Fig. 11 is a perspective view of a knot formed by. the device illustrated in the preceding figures.

In the drawings 1 represents a cylindrical casing or tube within which closely fits the bar 2 provided at one end with the rack 3 adapted to be engaged by the pinion 4; operated by the handle 5 and by means of which the. bar 2 is longitudinally moved within said tube 1.

By referring to Figs. 3 and A: it will be seeiitliat the shank 6 of the handle 5 is so mounted as to pass through the tube 1 near one end thereof and practically tangent to the inner surface thereof, and also that the shank 6 itself forms one of the bearings for said mounting. It will further be seen that the pinion 4, which is formed out of the shank 6 by providing the depressions 7 therein, is of the same diameter as the said shank and will therefore pass through the larger bearing into the tube 1. Beyond the pinion 4 the shank 6 is reduced in diameter to form the smaller bearin 8 for the shank mounting, This bearing 8 1s made sufiiciently long to receive outside the tube 1 the washer 9 and cotter pin 10 by means of which the shank 6'and tube 1 are held in operative relation. From Figure 1 it will be seen that one end of the pinion 1 is provided with a rounded shoulder 12 of a curvature to fit the inner surface of the tube 1 and to on thus provide a thrust bearing for the shank U.

The rack 3 is provided, at one extreme end of the bar 2, with the flat 15, which is of a dimension too great to pass the pinion 4. Thus it will be seen that when the parts are 901 assembled as shown, it will be impossible for the bar 2 to be worked out of engagement with the pinion 4c, and subsequently lost or separated from the tube 1.

The bar 2 is provided near its other end 001 (see Figs. 1, 2 and 3) with the transverse channel or groove 17 and the longitudinal pockets orgrooves 18 and 19 which extend respectively from the extremities of the groove 17 to the end 20 of the said bar. The grooves 17 18 and 19 are sutliciently deep to receive the wire package binder and are so formed in the bar 2 as to be U-shaped in plan view, with the bottoms of all the said grooves lying in a common plane which is 06 parallel to the axis of the said bar. Thus it will be seen that there is provided an up- .standing lu portion 21 three sides of which are formed y the grooves 17 18 and 19 and around which the binder wire may be looped. The sides of the groove 17 are inclined to the vertical as best seen in Figures 1 and 3 to rovide a lip 22, on the lug 21, and the inc ined surface 23 to facilitate the positionin and holding of the wire in the groove 17.

t will be observed that the parts are so dimensioned and constructed that the pinion 4 ma move the bar 2 to the right, as seen in Fig. 3, such. a distance as will project the lug 21, groove17and incline 23 out of the end 25 of the tube 1. It should be noted that the tube or cylinder 1 is provided with the abrupt end wall 25, that is to say, the end wall 25 is abrupt relative to any element of the outer surface of the cylinder 1. In other words, the plane of the end wall 25 is substantially perpendicular to the cylinder 1. It will also be seen that by reversely turning the pinion 4, the bar 2 will be telescoped or moved to the left, as seen in said Figure 3, such a distance as will just bring the end 20 of the said bar within the end 25 of the tube 1, see also Fig. 6. The end 25 of the tube is rounded off internally as at 26 for a purpose to be presently disclosed.

The operation of the device is as follows: A tie wire or binder 30 provided at one end with a knot or other obstruction 31 is passed through a package 32 provided at each end with a head 33 suitably apertured to accommodate the tie wire 30 but insufficient to pass the knot or obstruction 31, see Figures 5 and 10. The knot-ting tool is then applied to the protruding end 34: of the tie wire 30 close to the head 33 but not quite contacting therewith, and in such a manner that the tie wire will engage the groove 17 of said device, as clearly shown in Fig. 5. The handle 5 is then revolved about the shank 6 as an axis, as indicated by the direction arrow in said Fig. 5, whereupon the pinion 1 will rack or move the bar 2 so as to draw the end 20 thereof into the tube 1. This operation will draw the tie wire also into the tube'l, forming in the end of the said tie a U-shaped loop 35 disposed substantially at right angles to the main body portion of the tie 30 and with the extreme end 36 thereof extending beyond the said main body portion of the wire 30, as illustrated in Fig. 6, the sides of the loop 35 lying in'the grooves 18 and 19.

the forming of the loop 35 and prevents (S, whereupon the projecting end 36 of the I loop 35 will contact with the main body portion 30 of the tie wire as clearly illustrated in Fig. 7. During the operation just described it will be observed from Figures 5 and 10 that the head 33 of the package con-" stitutes a means for holding .the bight 30 of the wire during the turning movement of the device about the axis of the tube 1, and therefore it constitutes a portion of the complete apparatus for making the complete knot shown in Figure 11. The handle 5 is then revolved about the shank 6 as an axis, as indicated by the direction arrows in Fig. 8, whereupon the pinion 4 will rack or move the bar 2 out of the tube 1, and the parts8will be positioned as shown in said The entire device is then rotated about the axis of the tube as a center in the direction indicated by. the arrows in Fi 9, whereupon the main body ortion o the wire 30 will wind around t e protruding end 36 of the loop 35 forming a wrap or bight 37. The forming of these wraps 37 y is continued until the desired pressure has been placed on the head 33 of the package and the lug 21 contacts with and faces the said head. The lug 21 is then disengaged from the loop 35 and the entire device removed from the knot as indicated by the direction arrow in Fig. 10.

Thus it will be seen that this invention constitutes a hand tool capable of receiving a wire, forming a loop in said wire with an end extending beyond the main body portion of said wire and at an angle thereto, and said tool adapted to bend the main body portion of the wire around said end. Further, it is believed that a wire provided with such a head or knot constitutes a new article of mdanufacture which Will bemuch in deman Also it is obvious that a package, when secured by a tie formed as heretofore dis closed, cannot be opened except by destroyin the said tie. Therefore, such a tie, it is be ieved, will be of great value as by its use one could easily ascertain whether or not a package had been opened. It willbe evident from the foregoing that in forming the knot or head on the end of the tie considerable tension may be placed on the Wire and thus tightly close the ends of a pack- It is obvious that those skilled in that art may vary the details of construction as well as the arrangement of parts without departing from the spirit of the invention, and therefore it is not desired to be limited to the foregoing disclosure except as may be required by the claims.

What is claimed is:

1. In a wire knot forming tool, the combination of an outer tubular casing provided with abrupt end walls, a reciprocating means slidable in and out of said casing provided at one end with a pair of longitudinally disposed grooves, and a transversely disposed groove adapted to receive different portions of a wire when bent to occupy said grooves, said grooves forming a projecting lug bordered on three sides by said grooves, and means for moving said lug and grooves entirely out of said casing beyond said; abrupt walls to receive the wire to be bent and back into said casing, whereby when said wire occupies said transverse groove it will contact with said abrupt end walls and be carried into said casing to form a U shaped loop with an end projecting in a direction in prolongation of one side of said loop.

2. In a wire knot forming tool, the combination of an outer tubular casing provided with abrupt end walls, a reciprocating means slidable in saidcasing and provided at one end with a pair of longitudinally disposed and a transversely disposed groove, adapted to receive different portions of. awire and forming a projecting lug bordered on three sides by said grooves, and

means for moving said grooves'in and out of said casing, whereby when a wire is placed in said transverse groove and said grooves are retracted into said casing said wire will contact with said abru t end walls and be forced to occupy said ongitudinal grooves.

3. In. a wire knot forming tool, the combination of an outer casing provided with abrupt and inwardly beveled end walls, a reciprocating means provided with a rack slidable in said casing and provided at one end with a pair of longitudinally disposed grooves and a transversely disposed groove to receive different portions of a wire and forming a projecting lug bordered on three sides bysaid grooves, a pinion-engaging said rack and adapted to reciprocate the same in said casing, and means for moving said grooves in and out of. said casing.

4. In an apparatus for heading 0. wire on a package provided with means to hold one end of said wire at one end of said package and a second holding means at the other end of said package through which said wire passes, means comprising an outer casmg and a reciprocating member grooved at one end adapted to receive said wire as it leaves said second means, means to move said grooved end of said reciprocating means after it has received said wire back into said casing to bend said wire into a U-form with a projecting portion, whereby said casing and bent wire may be rotated around the axis of said casing as a center and said wire wrapped around said projecting portion to form a knot contacting with said second holding means. I

5. In an apparatus for securing a wire on a package provided with means to hold one end of said wire at one point of said package and a second holding means at another point of said package through which said wire passes constituting a support for the other end of said wire, means comprising an outer casing anda reciprocating member providedwith a rack and grooved at one end to receive said wire as it leaves said second means. means comprising a pinion engaging said rack to move said grooved end of said reciprocating means after it has received said wire back into said casing to bend saidwire into a U-form with a projecting portion, whereby said casing and bent wire may be rotated around the axis of said casing as a center and said wire wrapped around said projecting portion to form a knot contacting with said second holding means.

6. In :1, mm knot forming device, the combmation of a casing, a U-shaped wire recelvmg means shdably mounted in sa1d casmg, means to operate sa1d receiving means to form a loop in said wire with an end extending at right an les to and beyond the main body portion of said Wire, and a handle for rotating said casing and bent wire around the longitudinal axis of said casing as a center thereby wrapping the main body portion of said wire around saidextending portion to form a knot.

7. In a wire knot forming device, the combination of a casing, a grooved wire receiving means slidably mounted in said casing and provided with a rack, means to reciprocate said wire receiving means into and out of said casing to form a loop in said wire with an end extending be 0nd the main body portion of said wire, and means comprising a handle associated with said receiving means to rotate said casing and to bend the main body portion of said wire around said extending end.

In testimony whereof I afiix my signature.

4 PARVIN WRIGHT. 

